Free - Image files for PC-based emulators are completely free. Plug in cartridges are available for a nominal fee to cover cost of the EPROM (non-profit)

This Site

Since the TI-99/4A cannot realistically support an on-line help system, this site has been created to document all the features of TurboForth. Quite literally an online-help system! All the Forth words available in TurboForth from power-up are documented here with examples, stack signatures etc. There is also a section on what the Forth language "is" for new-comers to the language. Technical information, such as the memory map are also available, in addition to numerous support libraries. Source code is available to browse online, in addition to a downloadable archive.

Contact

If you want to communicate with other Forth-minded individuals (there's more of us than you think!) then comp.lang.forth is a good place. If you want to communicate with TI-99/4A Forth nerds (or just TI-99/4A nerds/programmers/fans in general, then I and a bunch of others hang out on the really cool TI-99/4A Development pages over at Atariage.com - yes, a website ostensibly dedicated to Atari machines, but which (very kindly) hosts a TI-99/4A forum for us nerdy types.

You can email the author at this email address:

Current Version

TurboForth is currently at V1.2.1:1 (the :1 means build 1), which can generally be considered stable. Please report any bugs to the author at the email address above.